The Cancer of Superstition, a non-fiction treatise commissioned from author H.P. Lovecraft, was found in a memorabilia collection in a defunct magic shop.
Magician Harry Houdini asked Lovecraft to ghostwrite the text for a book project, but died shortly thereafter. Now it goes to auction.
The collection bounced around after Beatrice Houdini's death in 1943 and was never truly catalogued or 'mined' in all that time. The papers were never researched or inventoried," said Potter & Potter president Gabe Fajuri. "In all that time, no one seemed to realise the significance of the manuscript."
Fajuri said the collection was recently bought privately, and when "the new owner began sorting through the mountain of paperwork, he began putting the pieces together, and in the process discovered the manuscript and its significance"
From the excerpts, it sounds exactly as you'd imagine a Lovecraft text about superstition to sound ('superstition is an "inborn inclination" that "persists only through mental indolence"' etc). There is some debate over the authorship, with S.T. Joshi identifying CM Eddy. If you want it, expect to pay $25,000-$40,000 for it.